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Probiotics and prebiotics in poultry nutrition
Under normal circumstances, there is a delicate balance of beneficial and pathogenic bacteria in the gastrointestinal tract (GIT). This is influenced by symbiotic and competitive interactions and relationships. The microbial communities will not only protect the GIT but also enhance productivity in the host. The use of probiotics and prebiotics are two approaches that have been examined and can potentially reduce enteric diseases in poultry and also enhance their productivity. These substances have been proposed to assist in the prevention of carcass contamination and improve the immune response in the chicken. Probiotics have been defined as 'a live microbial feed supplement which beneficially affects the host animal by improving its intestinal balance' (Fuller, 1989). The probiotic mode of action is by 'competitive exclusion', meaning there is competition for attachment sites in the GIT.
Introduction Feed additives are popular for their diverse activity via different modes of action. Probiotics as feed additives are currently widely utilized in order to modify the microbial population in the digestive tract. According to FAO probiotics are live microorganisms which when administered in adequate amounts confer a health benefit on the host. They require several days to...
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*Poultry Science Department, University of Arkansas, Fayetteville 72701; †Poultry Production and Product Safety Research Unit, Agricultural Research Service, USDA, Fayetteville, Arkansas 72701; ‡Poultry Science Department, Texas A&M University, College Station 77843 Publication Date: 2007 Poultry Science 86:921–930 ABSTRACT ...
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*Poultry Production and Product Safety Research Unit, Agricultural Research Service, United States Department of Agriculture, Fayetteville, Arkansas 72701 †Department of Poultry Science, University of Arkansas, Fayetteville, Arkansas 72701 Publication Date: 2005 Poultry Science 84:1092–1100 ...
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Introduction The amino acid glutamine (Gln) is traditionally considered as a non-essential amino acid. However, several researches has shown that Gln may be a conditionally essential amino acid in maintaining gut integrity and reducing inflammation [1-5]. Glutamine-enriched diets have been linked with favorable intestinal effects including maintenance of gut barrier function and enterocyte differentiation [6]. Glutamine has also been the focus of...
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Justin Tan, Biomin Regional sales & marketing Director, talks about Biomin products such as poultry prebiotics....
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INTRODUCTION Prebiotics are products containing carbohydrates, which main component is mannose. These products are commonly use to reduce the colonization of the intestinal tract by enteropathogenic bacteria. Probiotics are mainly represented by mannanoligosaccharides (MOS) and fructo-oligosaccharides (FOS), present in the cell wall of yeasts, such as Saccharomyces cerevisiae. They exert their action by maintaining or reestablishing the conditions...
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INTRODUCTION Salmonellosis account for a severe problem of public health both in developing and developed countries and several controlling mechanisms of such pathogen have been applied to poultry production (Cardoso and Carvalho, 2006). The inhibition effect produced by probiotics on the population of pathogenic enterobacteria such as Salmonella through the competitive...
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Introduction
Currently, Brazil occupies a prominent place in the production of broiler chicken and is the third largest producer and the largest exporter of chicken in the world. To achieve this position, it took great efforts to increase productivity and biosecurity on farms, with the aim of satisfying the quality required by both the internal and external markets. Thus, the control of...
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Introduction Since January 2006, there is a total banning of antibiotic growth promoters (AGP) in animal feeding in the European Union (EU). Despite being a controversial subject because there is both, information for and against it, the Scientific Steering Committee of the European Commission proposed a ban on AGP based on the "precautionary principle". As of 2012 the use of salinomycin and monensin will also be...
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MILWAUKEE - Lallemand Animal Nutrition North America has released two new formulation options of Levucell SB®: ProPak and ProPak+. Both formulations can be fed to sows, gilts, nursery pigs and finishing pigs.
Levucell SB is an active dry yeast, ( Saccharomyces cerevisiae boulardii - 1079) that has been selected for its ability to help maintain the balance of intestinal microflora. Documented...
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Poultry infected with the parasite Eimeria maxima usually develop avian coccidiosis, a disease estimated to cost producers globally more than $1.2 billion every year. So Agricultural Research Service (ARS) immunologist Hyun Lillehoj has been working with colleagues in ARS and around the world to find dietary supplements that strengthen the poultry immune system.
Lillehoj, at the ARS Animal Parasitic Diseases Laboratory in Beltsville, Md., cooperated on the research with...
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International scientists gathered for Institut Rosell-Lallemand Scientific Exchange break new ground on probiotics research and pave the way for new applications
More than 40 scientists and experts from different universities and research centers across North America and Europe gathered last month in Quebec City to participate in Institut Rosell-Lallemand's Scientific Exchange. With varying though complementary backgrounds...
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Feed borne antibiotic growth promoters (AGP) have been fed to livestock in the US and other countries for about 50 years to improve growth performance. Early indications of improved performance in poultry were reported by Moore et al. (1946). However, most of the AGP labels list no specific claims to control disease. Debate over the generation of antibiotic resistance among bacteria such as Escherichia coli ( E. coli ) and Salmonella has generated the...
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